A) Have bulliform cells
B) Are long and thin
C) Have parallel venation
D) Are isobilateral
Correct Answer: A
Solution :
Some of the cells in the leaves of grasses are comparatively very large, called bulliform or motor cells. It is hygroscopic in nature. e.g., Ammophila. They are thin-walled and contain big central vacuoles filled with water. They play an important role in the folding and unfolding of leaves.
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